Motor wrench



Jan. 21, 1930. c. w. GALLowAY l vMOTOR WRENCH Filed Apr'il l2, 1929' 3 Sheets-Sheet l Jan. 2l, 1930. c. w. GALLow/wI MOTOR WRENCH Filed `April 12, 1929 s sheets-sheet 2 Jan. 2l, 1930. c. w. GALLowAY, Y1,744,540

MOTORl WRENCH Filed April l2. 1929 3 Sheets-snee?l 5 Patented Jan. 21', 1930 CHARLES W. GALLOWAY, F BALTIIOBE, MARYLAND l MOTOR 'WRENCH Application led April 12,

A motor wrench for applying, adjusting and removing nuts on bolts used in rail joint, angle bars, where rail joints arespliced together is a labor saving device over the present method of using anv open end hand wrench.

The old standard nut and lock washer used on rail l'oints has been superseded by a lock nuthaving distorted threads which require a 1'0 wrench for application from the time it is started on the bolt until it is brought in contact 'with surfaces it is to secure; nuts becom'rroded and are so tight they cannot be removed with a hand wrench, and it is necessary to split the nuts with a chisel and maul, or burn them olf with a torch.

The primary object of my invention is to reduce the labor costs of applying and removing nuts, and to provide means whereby the wrench may be applied to either side of the rail and to both rails of a railroad trackway; and with these and other objects in view, my invention consists of the parts and comibnation of parts hereinafter set out.

In the drawings:

Figure 1 is a perspective view of my improved motor wrench in operative position on railroa'd rails.

Figure 2 is an enlarged end elevation of Figure 1 showing the motor wrench in dotted lines in shifted position.

Figure 3 is a vertical central section of my wrench.

The reference letter A designates railway rails, B angle bars, and' C bolts and nuts of standard construction.

The frame constituting a part of my motor wrench comprises axles 4 on which are journaled wheels 5 adapted to run on the rails A,

T couplings are secured to the axles 4-near l each wheel into each of which issecured a standard 7, the standards being connected together at the top by spacin members 8 and 9.A Braces '10 are connecte at one end to the couplings 6, and at their upper ends to the side members l9, thereby bracing the side members 9 from the axles 4. Suspended by the straps 11 is an I beam 25 extending transversely of the machine, upon the lower flanges-of which are mounted rollers 12 which nectin ma semi 1ro. 354,652.

support a carriage 13 having a depending eye 14 in which a chain hoist 15 of approved construction is suspended. A strut 16 is secured at each end to the axles 4 and is disposed at right angles thereto and deflected downwardly intermediate its ends as shown in Figurel 3.

lThe wrench operating mechanism comprisin a` train of gears (not shown) is suit-V ab y mounted in the Casin '17' which is con- 00 nected to and suspended Aom the chain 18 of the hoist 15 by means of a swivel 19 mounted on a bar 20 bolted at 21 to the housing 17. A suitable motor 22 is also connected to the bai` 20, there being additional bars 21 con- 05 the motor and housing as a unit. Exten ing from the gear housing 17 at the bottom are nut wrenches 23, mounted on a common shaft geared. with the train of gears in the housing. The motor has a suitable control 24 conveniently positioned for the operator. The I beam 25 is provided with stops 26 at each end to prevent the rollers 12 from accidentally rolling oil the vends. thereof.

A crank arm 27 is pivotally mounted at 28 on the gear housing 17 with its handle 29 positioned nearF the motor control 24. To the shorter arm 30 of the lever, or arm 27, I pivotally secure the outer end of locking bar 31, which is provided with notches'32, 3 3, adapted to enga e the strut 16 as shown 1n Figure 2 for hol g the wrench in sition on the units C. This bar 31 is provi ed with a suspension hook 34 adapted to engage the 85 rod 35 to hold the bar in elevated position when the machine is moved from place to place. The machine'may be provided with a propelling motor or may be cou led to a motor car for quick transportation from one point to another.

In the regular practice in rail s lices the heads of the bolts alternate, that 1s to say the head of the first bolt is on the outside o the rail and the head of the next bolt on the inside of the rail, and so on throughout `the sp ce.A

As shown in Figure 2 in full lines, the wrench nut socket 23 is operating on a nut on the outside ofthe rail, the operator A www". a

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through the lever 27, and the connection of the bar 31 to the strut, holding the wrench snug against the nut. Now when-the nut of the next-succeedin bolt is to be operated u n the housing 1'? and associated parts are evated above the top-of the rail by means of the chain hoist 15, and the hoist and housing are then moved on the rollers `12 to the position shown in dotted lines in Figure 2 and full lines in Figure 2, whereupon the wrench is lowered to enable the socket 23 to engage the nut. This shifting of the wrench is repeated until all the nuts of a splice bar have been properly tightened, whereu n the hoist 15, ousing 17, and associa parts are moved onthe beam 25 and rollers 12 to the tgposit'erail A, and the operations repea onthenutsof the s lice of that rail, after which the whole mae ine is ropelled along the rails to the next splice. en the wrench sockets 23 are operatin onithe inside of the rail the notch 32 of the ar 31 engages the strut 16 asishown in dotted lines in Figtrack rails each having splice ure 2.

The wheels 5 are provided with a libre bushing 36 to insulate the machine from the track to avoid the possibility of the machine glperating the track signals as it moves along It is obvious that changes ma be made in the details of construction wit out de arting from the spirit of my invention an the sco e of the appendedxclaims. n

at I claim is: i 1; In a wrench for operating upon railway ars with a plurality of/bolts provided with nuts on opposite sides/of the rail, the combination-with a support movable on the railway rails, of y a power operatedwrench comprising a hous` ing carrying a pair of nut engaging wrenches respectively projecting from opposite sides thereof for respective enga ement with the nuts on the inside and outsi e of a rail, ilex-l ible means movable on said support and suspending said wrench from the support whereby the wrenchlmay be moved from side to side of the track to act u on the rail at either side and to be dispose on the inside or out- "side of either rail to bring` the. one or the other of said nut engaging wrenches forengagement with the inside or outside nuts of thesplice bars of the rail, a locking member on the support, a locking member projecting beyond one side of the 'wrench housing for engagement with the locking member( on the supportto lock the wrench in working position on either side of a rail, and a swivel joint between-thc wrench and its suspending means whereby said wrench ma be reversed side `for side when shifted from one side to the other of the-track to dispose said locking member onthe housing, when the .latter is disposed at either side of the .track rails each having s lice to side of the track to act u locking with spaced notches to' engage sai station'- track, fof a lacking coaction with am 106k-l ing member on the support.

2. In awrench for o rating u n rail-A way track rails each havin s lice ars with a plurali -of bolts'provi e with nuts on 'opposite sides of the rail, the combination with a wheeled support movable on-the railway rails, of a transverse I-beam mounted power operated wrench comprising a housing -carrying a pair of nut engaging wrenches respectively projecting from opposite sides thereof for tive enga 'A ent'with the vnuts on the inside and outsi e of a rail, suspension -means embodying a wheeled carriage mounted to travel upon the lower anges of the I-beam and suspending the wrench therefrom, whereb from sideto side of the track to act Yupon the rail at either. side and to be disposed on the inside or outside of either rail to bring the one or the other of said nut engaging wrenchesfor en agement with the inside or outside nuts of t e splice bars of the rail, a locking member on the support, a locking member projecting beyond one side of the wrenchA housing for engagement with the lockin member on the support to lock the wrenc in workin position on either side of a rail, and a-swiv joint between the wrench and its su nding means whereby said wrench may reversed side' foi-side when shifted from one 'side tothe other of the track to dispose said lookin member on the housing, when'the latter is sposed at either side of the track for a locking coaction with the locking mem r on the support.

3. In a wrench for operating upon railway plurality of bolts provide with nuts on opposite sides ofthe rail, the combination with asupport movable-onV the railway rails, of a power operated wrench comprising a housing carrying .a pair of nut engaging wrenches respectively projecting from opposite sides thereof for res ective enga ement with the the wrench may be moved j bars with a nuts on the inside and outsi e, of a rail, flex-y ible means movable on said support and suspending said 'wrench from the support whereby the wrench may be moved from side n the rail at either side andv to be dispose on the inside or outside of either rail to bring the one or the other of. said nut enga g wrenches for engagement with of the splice bars of the rail, a longitudinally the insi e or outside nuts extending stationary locking bar on the support, a manually ,operable crank lever piv- Y oted to and projecting be ond one side of the wrench housin a loc g bar pivoted tovsaid 'lever and s idable on the stationary bar on` the support and rovided ary locking bar for respectively locking the wrench in its inside and outside locking positions with respect to a'rail, and a swivel Joint between the housing and its suspending means whereby the wrench maybe reversed side for side when shifted from one side to the other of the track to dispose the locking bar on the housing, when the housing is at either side of thetrack, for engagement with the stationary locking bar on the support.

In testimony whereof I aix my signature.

CHARLES W. GALLGWAY. 

